International Earth Rotation and Reference Systems Service

International Earth Rotation and Reference Systems Service
AbbreviationIERS
Formation1987
TypeInternational Organization
Headquarters Germany, Frankfurt
Websitewww.iers.org

The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation Parameter (EOP) and International Celestial Reference System (ICRS) groups.